Pineda tentatively will pitch Sept. 3, 10 and 21, and that will be it for his wildly successful first season in the majors. Pineda is 9-8 with a 3.71 ERA in 25 starts. He has struck out 156 in 153 innings, walking 50.

His previous season high for innings pitched was 139.1 innings between Triple-A and Double-A last season. He was shut down by the Rainiers because of a history of arm discomfort in previous seasons.

The Mariners have said all year that Pineda’s workload would be closely monitored. He is considered a long-term No. 2 starter behind Felix Hernandez and started the season as the No. 2 prospect in the organization, behind second baseman Dustin Ackley.